Added support for laravel 7.0

Author: leandrogehlen

composer.json

@@ -20,12 +20,12 @@
     }
   ],
   "require": {
-    "illuminate/auth": "^6.0",
-    "illuminate/database": "^6.0",
-    "illuminate/events": "^6.0"
+    "illuminate/auth": "^6.0 || ^7.0",
+    "illuminate/database": "^6.0 || ^7.0",
+    "illuminate/events": "^6.0 || ^7.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "^7.5"
+    "phpunit/phpunit": "^7.5 || ^8.0"
   },
   "autoload": {
     "psr-4": {